step.c

步进电机驱动程序：练习对步进电机的控制及代码编写

/*******************************************************************/
/*                                                                 */
/* BY-V1单片机学习/开发系统演示程序 - 步进电机驱动                 */
/*                                                                 */ 
/* MCU:STC89C52 ,晶体频率：11.0592MHz                              */
/*                                                                 */
/* Email:[e-mail]                                          */
/* Website:http://www.mcuby.com                                    */ 
/* QQ:445027559                                                    */ 
/*                                                                 */
/*【版权】Copyright(C)博弈电子 www.mcuby.com  All Rights Reserved  */
/*【声明】此程序仅用于学习与参考，引用请注明版权和作者信息！       */
/*                                                                 */
/*******************************************************************/
#include <reg52.H>

#define uint unsigned int
#define uchar unsigned char

sbit ledlk=P1^0;
sbit smglk=P1^1;
sbit smgbitlk=P1^2; 
sbit key1=P3^0;
sbit key2=P3^1;
sbit key3=P3^2;
sbit key4=P3^3;

sbit led1=P2^0;
sbit led2=P2^1;
sbit led3=P2^2;
sbit led4=P2^3;
 
char excite_z[]={0xf7,0xf3,0xfb,0xf9,0xfd,0xfc,0xfe,0xf6};//正转
char excite_f[]={0xf6,0xfe,0xfc,0xfd,0xf9,0xfb,0xf3,0xf7};//反转 
void delay(uint ms)
{
	uint i,j;
	for (j=0;j<ms;j++)
		for (i=0;i<120;i++);
}

 
void delayus(uint us)
{
	uint i,j;
	for (j=0;j<us;j++)
		for (i=0;i<12;i++);
}

void showsmg(uchar smg,uchar value)
{
	uchar code tablesmg[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf};
	uchar code table[]={ 0x3f , 0x06 ,0x5b , 0x4f , 0x66 , 0x6d , 0x7d , 0x07 , 0x7f  , 0x6f , 0x77 , 0x7c , 0x39 , 0x5e , 0x79 , 0x71 , 0x00};

		smglk=1;
		P2=tablesmg[smg];
		smglk=0;

		smgbitlk=1;
		P2=table[value];
		smgbitlk=0;
    	delay(3);	
}

void main()
{
	uchar i;
	uint j=0;

	smglk=0;
	smgbitlk=1;
	P2=0;
	smgbitlk=0;
	P3=0xff;
	ledlk=1;
	P2=0xff;
	ledlk=0; 
	delay(10);	  
	while(1)
	{
		while(j!=200)
		{
			for (i=0;i<8;i++)
			{
		   		P2=excite_z[i];
				delayus(10); 
			}
			j++;
		}
		delay(200);	  
		while(j)
		{
			for (i=0;i<8;i++)
			{
		   		P2=excite_f[i];
				delayus(5); 
			}
			j--;
		}	
		delay(200);	  
	}
}